Abstract: Objective：In order to reduce the incidence of infection and disablement，and increase the efficiency of wound flushing and debriding，a computed irrigating device was designed．Methods：Canine models wounded with gunshot at the limbs were established． Three methods，including computed irrigating device，rubber ball and bottle-poured，were used to irrigating wound，respectively．General observation and quantitative bacterial analysis were performed immediately after injured and irrigated．Results：The bacteria counts at the surface of wound irrigated with computed irrigating device are much less than those with rubber ball and bottle-poured（P＜0.01）．Moreover ，the wound surface flushing with computed irrigating device has much less debris，fragments or eyewinker in comparison with two other ways．Conclusion：Computed irrigating device is superior to traditional flushing methods in respect of operation and flushing efficiency． It could be more useful during war．